Thank you for taking the time to record these videos. I can never thank you enough. Being able to see a Pro working in real time has given me an immense amount of knowledge. Pressure and temperature is important for us to see when you work on any unit. you take time to show us every little detail.
When ever I drink I get to the point where I miss the little details. Thanks for looking out on that rotation thing I am sorry I missed that one to much Jack!!!!
It was a great video for my students to see the importance of "paying attention to detail" (catching the fan blade rotating the wrong way). As always good job Jim. Woody
jim you are awesome you just remind me my ex boss I was his assistant for 12 years ...he is now retire..he worked just like you...I like the old school
another good video thanks Jim I learn a lot watching your videos keep making more one day I will run into you someday at a supply house I work for local hvac company.
Great Work Jim! If you put the amp meter on the start capacitor lead you can tell it the relay is working, once it switches the start cap out of circuit the amps should drop to 0
First no cool of the season had a bad contactor and found a non reversible condenser fan running backwards. I owe my attention toy detail to guys like you.
Hey, great work. I thought that fan motor looked unusual when I saw it running towards the beginning of the video. I also hate how the fan motor run cap was installed with electrical tape covering the connections and the lack of a strap...it makes working on equipment just that more difficult to sort through. I keep a roll of perfected metal strapping for replacement caps. Also, that older low pressure switch may have previously been opening because the suction line drier had pressure drop across it....and the reversed fan motor caused higher head, & possibly suction pressure. You ever know what the previous clown working on the unit may have done to the unit. I find loads of equipment with suction line driers that weren't removed after three days to a week. A trick I learned from a factory engineer is installing two valves and bypass piping around the suction line drier to remove it from the circuit after its usefulness has been reached. It save the tech and owner money in the long run.. not to mention destroying a new compressor because of severe pressure drop from the HH drier. I had a failed closed potential start cap relay take a compressor out that was only 6 years old. The system had regular bi-annual maintenace since it's install as well....it was a Bristol two stage compressor..JUNK!! I'm glad your a meticulous tech, just like myself, and insist on doing the job right. Just explaining to the owner to agree to perform the work is the only road block that would hamper my work ethic..that's why I document EVERYTHING. (And always take pictures just to CYA..before and after the work) It would embrass me a lot if I did crap job like the previous tech that worked on the unit. I wish I had a quality, easy to use, small camera and know how to make videos!
good catch on a fan, which could cause another comp. to go, thanks for the video, i been checking your channel few times a week for the new vids, please keep them coming if you can thanks!
Just goes to show years of experience means you would catch something that most young people with little experience normally would blow by them Great job on video Jim
Hi Jim ; I am 60 years old so my knees hurt me very much when repairing AC so I brought me a small low folding chair to use on sight I would recommend it for you very much .
+salehhamid mine hurt too, I'm 65. I got two foam pads, that I can double up, it's real cushy, thanks ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-iY1PugzTpxY.html
I have that same amprobe meter too. It's a good meter for the cost and Amprobe is owned by Fluke. I just got a Flir CM174 (clamp meter with thermal imager to insoect electrical connections and any over heating connections. Flir sold it to me for $150 as a sorry/olive branch from multiple failures to fix a warranty claim on another tool that they sent me a new updated Imager! I'm still testing the meters operation, accuracy, and functions before I trust using it.. (extech makes the Flir meters since Flir owns Extech). Also, (just a comment on another one of their test instruments) flir's non contact voltage detector is the best I've used to this day! I highly recommend it over Fluke, Klien, Greenlee, ect non contact voltage detector.. it has two sensitivity setting for high and low voltage that work phenomenal. SORRY FOR GETTING OFF TOPIC, but I'm a extreme Tool adddict!
hello jim, ran into this problem today, and am curious as to what number you touched with the start cap 2 or 1? thanks for all your vids!!!! hope your well and happy!!!!
Jim start capacitors come with bleed resistor. If the resistor is left in line, the capacitor checker will incorrectly read a much higher value than rated capacitance.
Hey Jim- What made you suspect the bad relay? Im somewhat new to the commercial industry and would never have thought to check that relay after getting a high amp draw, I would have thought the compressor had a locked rotor. Ive never seen this problem before, that I know of anyway.-- Thanks Jim
Jim had that unit not been marked with what refrigerant it was in it how would you determine what it was if it needed some, or would you just recover the unknown gas and replace it with a fresh charge and mark it?
Failed starting on a compressor, use a hard-start-kit or a compressor saver, with run cap if needed. Takes only a few minutes after ohming out the compressor between windings and ground. If it starts, bad start components, if it doesn't, locked rotor. Would have saved you an hour or more. If bad start components, change them all, but if they've failed/burn't, then your compressor is on its last legs, more than likely. Good call on the fan running backwards! Could have damaged the compressor and caused the whole thing.
The relay switches the start capacitor out of the circuit ? Is the start winding also switched off ? What controls the relay ? Does it also have a run capacitor ? Thanks , :-) Wyr God bless
+Luther Fairley the relay was keeping the compressor's run winding in the circuit, it draws high amps, it should only be engaged for a second, then drop out, it's like trying to drive your car down the throughway in first gear.
The relay switches the start capacitor out of the circuit ? Is the start winding also switched off ? What controls the relay ? Does it also have a run capacitor
I'm hoping the guy who made this video is not upset at our detailed explanation of his work. I'm sure he is well aware of what we spoke about and I was certainly joking about him being senile. Matter of fact, he is one of the sharpest hvac guys I have listened to. Job well done Mr. Pettinato. Job well done and thanks for taking the time to educate the younger guys who do this work.
heya im from south Africa iv got a freezer room with x3 blowers in the right side one is icing up on the coil i checked the defrost heaters they are working fine what could cause the coil to ice up ? the temp the customer is looking for is -20 but its running on -8 to -10
Hey, great work. I thought that fan motor looked unusual when I saw it running towards the beginning of the video. I also hate how the fan motor run cap was installed with electrical tape covering the connections and the lack of a strap...it makes working on equipment just that more difficult to sort through. I keep a roll of perfected metal strapping for replacement caps. Also, that older low pressure switch may have previously been opening because the suction line drier had pressure drop across it....and the reversed fan motor caused higher head, & possibly suction pressure. You ever know what the previous clown working on the unit may have done to the unit. I find loads of equipment with suction line driers that weren't removed after three days to a week. A trick I learned from a factory engineer is installing two valves and bypass piping around the suction line drier to remove it from the circuit after its usefulness has been reached. It save the tech and owner money in the long run.. not to mention destroying a new compressor because of severe pressure drop from the HH drier. I had a failed closed potential start cap relay take a compressor out that was only 6 years old. The system had regular bi-annual maintenace since it's install as well....it was a Bristol two stage compressor..JUNK!! I'm glad your a meticulous tech, just like myself, and insist on doing the job right. Just explaining to the owner to agree to perform the work is the only road block that would hamper my work ethic..that's why I document EVERYTHING. (And always take pictures just to CYA..before and after the work) It would embrass me a lot if I did crap job like the previous tech that worked on the unit. I wish I had a quality, easy to use, small camera and know how to make videos!
